8-(2-(6-bromonaphthalen-2-yl)-2-oxoethyl) 7-(tert-butyl) (S)-1,4-dioxa-7-azaspiro[4.4]nonane-7,8-dicarboxylate

tert-butyl (S)-8-(5-(6-bromonaphthalen-2-yl)-1H-imidazol-2-yl)-1,4-dioxa-7-azaspiro[4.4]nonane-7-carboxylate

(S)-8-(5-(6-bromonaphthalen-2-yl)-1H-imidazol-2-yl)-1,4-dioxa-7-azaspiro[4.4]nonane

(2S,3aS,7aS)-1-(benzyloxycarbonyl)octahydro-1H-indole-2-carboxylic acid